Answer:
The best answer would be - option A. have a striped pattern.
Step-by-step explanation:
Oceanic ridge is the geographic location or region which occurs with the seafloor spreading. When the magma erupts or comes out of these ridges they form rocks that look like a pillow in shape.
Striped patterns take place there that depicts the earth's magnetic field. This type of rocks and pattern keeps on changing with every time magma erupts from the ridges. However, there are other features also found in these type of rocks like pillow-shaped , provide evidence to seafloor spreading , made from molten material.
Hence, the best answer would be - option A.